1.获取媒体数据所有的图片、音频、视频、文件；
2.分页获取媒体数据的图片、音频、视频、文件；
3.删除媒体数据的图片、音频、视频、文件；
4.检查媒体数据的图片、音频、视频、文件是否存在；(文件删除需要_Data字段；
5.获取媒音乐对应的封面（第三方音乐软件下载到本地的歌曲，获取不到，媒体数据中不保存该封面，只有自己的服务器下载的带封面的歌曲能够保存在媒体数据库中）；
6.媒体数据库更新的方法；
package xxx;
/**
* 本地资源获取接口.
*/
public class MediaOptionManager {
private static final float RADIUS = 30;
private static final int ZERO = 0;
private static MediaOptionManager mMediaOptionManager;
public static final String IMAGE = "picture";
public static final String VIDEO = "video";
public static final String AUDIO = "audio";
public static final String FILE = "file";
private static final int PAGE_COUNT = 20;
private static final int INDEX = 6;
private static final String TAG = "MediaOptionManager";
public static DateFormat formatAll = new SimpleDateFormat("yyyy-MM-dd HH:mm");
public static DateFormat YMDHMS = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private DateFormat formatYms = new SimpleDateFormat("yyyy-MM-dd");//把long转成String
public static SimpleDateFormat formatNyr = new SimpleDateFormat("yyyy年MM月dd日");
private static final Uri ARTWORKURI = Uri.parse("content://media/external/audio/albumart");
private static final BitmapFactory.Options BITMAPOPTIONS = new BitmapFactory.Options();
private static Bitmap mCachedBit = null;
private static final String[] IMAGE_PROJECTION = {
MediaStore.Images.ImageColumns._ID,
MediaStore.Images.ImageColumns.DATA,
MediaStore.Images.ImageColumns.DISPLAY_NAME,
MediaStore.Images.ImageColumns.DATE_TAKEN,
MediaStore.Images.ImageColumns.SIZE};
private static final String[] VIDEO_PROJECTION = {
MediaStore.Video.VideoColumns._ID,
MediaStore.Video.VideoColumns.DATA,
MediaStore.Video.VideoColumns.DISPLAY_NAME,
MediaStore.Video.VideoColumns.DATE_TAKEN,
MediaStore.Video.VideoColumns.SIZE};
private static final String[] AUDIO_PROJECTION = {
MediaStore.Audio.Media._ID,
MediaStore.Audio.AudioColumns.DATA,
MediaStore.Audio.AudioColumns.DISPLAY_NAME,
MediaStore.Audio.AudioColumns.DATE_MODIFIED,
MediaStore.Audio.AudioColumns.SIZE,
MediaStore.Audio.Media.ALBUM_ID,
MediaStore.Audio.Media.ARTIST
};
private static final String[] FILE_PROJECTION = {
MediaStore.Files.FileColumns._ID,
MediaStore.Files.FileColumns.DATA,
MediaStore.Files.FileColumns.DISPLAY_NAME,
MediaStore.Files.FileColumns.DATE_MODIFIED,
MediaStore.Files.FileColumns.MIME_TYPE,
MediaStore.Files.FileColumns.SIZE};
private MediaOptionManager() {
}
/**
* MediaOptionManager单例.
*
* @return MediaOptionManager
*/
public static MediaOptionManager getInstance() {
if (mMediaOptionManager == null) {
mMediaOptionManager = new MediaOptionManager();
}
return mMediaOptionManager;
}
/**
* 获取所有的图片.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllImage(Context context) {
ArrayList<GridItem> GirdList = new ArrayList();
String orderBy = MediaStore.Images.ImageColumns.DATE_TAKEN + " desc";
Cursor cursor = context.getContentResolver().query(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_PROJECTION,
null, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "count=" + cursor.getCount());
cursor.moveToFirst();
do {
String id = cursor.getString(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[0]));
String path = cursor.getString(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[1]));
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[2]));
long date = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[4]));
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
LogUtils.dTag(TAG, "fileName=" + fileName);
GridItem item = new GridItem(id, fileName, path, "", sDate, false,
false, String.valueOf(date), size, false);
GirdList.add(item);
} while (cursor.moveToNext());
}
cursor.close();
}
return GirdList;
}
/**
* 获取所有的图片.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllImageName(Context context) {
ArrayList<String> list = new ArrayList();
String orderBy = MediaStore.Images.ImageColumns.DATE_TAKEN + " desc";
Cursor cursor = context.getContentResolver().query(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_PROJECTION,
null, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "count=" + cursor.getCount());
cursor.moveToFirst();
do {
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[2]));
list.add(fileName);
} while (cursor.moveToNext());
}
cursor.close();
}
return list;
}
/**
* 分页获取Image.
*
* @param context 上下文
* @param pageNum 页码
* @return list
*/
public static ArrayList getImagesByPage(Context context, int pageNum) {
ArrayList<GridItem> GirdList = new ArrayList();
int offset = (pageNum - 1) * PAGE_COUNT;
int max = pageNum * PAGE_COUNT;
LogUtils.dTag(TAG, "offset=" + offset + ";max=" + max);
// limit start, every time get the num of records
String orderBy = MediaStore.Images.ImageColumns.DATE_MODIFIED + " desc limit " + offset + "," + PAGE_COUNT;
Cursor cursor = context.getContentResolver().query(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_PROJECTION,
null, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "count=" + cursor.getCount());
cursor.moveToFirst();
do {
String id = cursor.getString(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[0]));
String path = cursor.getString(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[1]));
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[2]));
long date = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[4]));
if (size == 0) {
continue;
}
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
LogUtils.dTag(TAG, "fileName=" + fileName);
GridItem item = new GridItem(id, fileName, path, "", sDate, false,
false, String.valueOf(date), size, false);
GirdList.add(item);
} while (cursor.moveToNext());
}
cursor.close();
cursor = null;
}
return GirdList;
}
/**
* 获取所有的Video.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllVideo(Context context) {
ArrayList<GridItem> GirdList = new ArrayList();
// int offset = (pageNum - 1) * PAGE_COUNT;
// int max = pageNum * PAGE_COUNT;
// LogUtils.dTag(TAG, "offset=" + offset + ";max=" + max);
// String orderBy = MediaStore.Video.VideoColumns.DATE_MODIFIED +
// " desc limit " + offset + "," + max;
String orderBy = MediaStore.Video.VideoColumns.DATE_MODIFIED + " desc";
Cursor cursor = context.getContentResolver().query(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI, VIDEO_PROJECTION,
null, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String path = cursor.getString(cursor.getColumnIndexOrThrow(VIDEO_PROJECTION[1]));
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(VIDEO_PROJECTION[2]));
LogUtils.dTag(TAG, "-fileName->" + fileName);
long date = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[4]));
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
LogUtils.dTag(TAG, "fileName=" + fileName);
GridItem mGridItem = new GridItem(fileName, path, sDate, true, false, String.valueOf(date), size);
GirdList.add(mGridItem);
} while (cursor.moveToNext());
}
cursor.close();
}
return GirdList;
}
/**
* 获取所有的Video.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllVideoName(Context context) {
ArrayList<String> list = new ArrayList();
String orderBy = MediaStore.Video.VideoColumns.DATE_MODIFIED + " desc";
Cursor cursor = context.getContentResolver().query(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI, VIDEO_PROJECTION,
null, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(VIDEO_PROJECTION[2]));
list.add(fileName);
} while (cursor.moveToNext());
}
cursor.close();
}
return list;
}
/**
* 分页获取videos.
*
* @param context 上下文
* @param pageNum 页码
* @return list
*/
public static ArrayList getVideosByPage(Context context, int pageNum) {
ArrayList<GridItem> GirdList = new ArrayList();
int offset = (pageNum - 1) * PAGE_COUNT;
int max = pageNum * PAGE_COUNT;
LogUtils.dTag(TAG, "offset=" + offset + ";max=" + max);
String orderBy = MediaStore.Video.VideoColumns.DATE_MODIFIED + " desc limit " + offset + "," + PAGE_COUNT;
Cursor cursor = context.getContentResolver().query(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI, VIDEO_PROJECTION,
null, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String id = cursor.getString(cursor.getColumnIndexOrThrow(VIDEO_PROJECTION[0]));
String path = cursor.getString(cursor.getColumnIndexOrThrow(VIDEO_PROJECTION[1]));
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(VIDEO_PROJECTION[2]));
// LogUtils.dTag(TAG, "-fileName->" + fileName);
long date = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(IMAGE_PROJECTION[4]));
if (size == 0) {
continue;
}
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
//LogUtils.dTag(TAG, "fileName=" + fileName);
GridItem item = new GridItem(id, fileName, path, "", sDate, true,
false, String.valueOf(date), size, false);
GirdList.add(item);
} while (cursor.moveToNext());
}
cursor.close();
}
return GirdList;
}
/**
* 获取所有的audio.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllAudio(Context context) {
ArrayList<GridItem> GirdList = new ArrayList();
String orderBy = MediaStore.Audio.AudioColumns.DATE_MODIFIED + " desc ";
Cursor cursor = context.getContentResolver().query(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, AUDIO_PROJECTION,
null, null, orderBy);
LogUtils.dTag(TAG, "-cursor->" + cursor.getCount());
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String path = cursor.getString(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[1]));
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[2]));
LogUtils.dTag(TAG, "-fileName->" + fileName);
long date = cursor.getLong(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[4]));
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
LogUtils.dTag(TAG, "fileName=" + fileName);
GridItem mGridItem = new GridItem(fileName, path, sDate, false, false, String.valueOf(date), size);
GirdList.add(mGridItem);
} while (cursor.moveToNext());
}
cursor.close();
}
return GirdList;
}
/**
* 获取所有的audio.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllAudioName(Context context) {
ArrayList<String> list = new ArrayList();
String orderBy = MediaStore.Audio.AudioColumns.DATE_MODIFIED + " desc ";
Cursor cursor = context.getContentResolver().query(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, AUDIO_PROJECTION,
null, null, orderBy);
LogUtils.dTag(TAG, "-cursor->" + cursor.getCount());
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[2]));
list.add(fileName);
} while (cursor.moveToNext());
}
cursor.close();
}
return list;
}
/**
* 分页获取audios.
*
* @param context 上下文
* @param pageNum 页码
* @return List
*/
public static ArrayList getAudiosByPage(Context context, int pageNum) {
ArrayList<GridItem> GirdList = new ArrayList();
int offset = (pageNum - 1) * PAGE_COUNT;
int max = pageNum * PAGE_COUNT;
LogUtils.dTag(TAG, "offset=" + offset + ";max=" + max);
String orderBy = MediaStore.Audio.AudioColumns.DATE_MODIFIED + " desc limit " + offset + "," + PAGE_COUNT;
Cursor cursor = context.getContentResolver().query(
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, AUDIO_PROJECTION,
null, null, orderBy);
LogUtils.dTag(TAG, "-cursor->" + cursor.getCount());
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String id = cursor.getString(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[0]));
String path = cursor.getString(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[1]));
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[2]));
long date = cursor.getLong(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[4]));
if (size == 0) {
continue;
}
int albumId = cursor.getInt(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[5]));
String artist = cursor.getString(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[INDEX]));
long songId = cursor.getInt(cursor.getColumnIndexOrThrow(AUDIO_PROJECTION[0]));
Bitmap albumArt = getArtwork(context, songId, albumId, true);
//Bitmap albumArt = null;
String cover = "";
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
String lrcPath = path.substring(0, path.lastIndexOf("."))
+ ".lrc";
GridItem gridItem = new GridItem(songId + "", fileName, path, sDate, false,
false, String.valueOf(date), size, getRoundedCornerBitmap(albumArt,
RADIUS), artist, lrcPath, false);
GirdList.add(gridItem);
} while (cursor.moveToNext());
}
cursor.close();
}
return GirdList;
}
/**
* 获取所有的file.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllFile(Context context) {
ArrayList<GridItem> GirdList = new ArrayList();
String orderBy = MediaStore.Files.FileColumns.DATE_MODIFIED + " desc ";
String selection = MediaStore.Files.FileColumns.MIME_TYPE + "= ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? ";
String select = "(_data LIKE '%.pdf')"
+ " or (_data LIKE '%.docx')"
+ " or (_data LIKE '%.doc')"
+ " or (_data LIKE '%.xls')"
+ " or (_data LIKE '%.xlsx')"
+ " or (_data LIKE '%.ppt')"
+ " or (_data LIKE '%.pptx')"
+ " or (_data LIKE '%.txt')";
String[] selectionArgs = {
"text/plain",
"application/msword",
"application/pdf",
"application/vnd.ms-powerpoint",
"application/vnd.ms-excel"};
Cursor cursor = context.getContentResolver().query(
MediaStore.Files.getContentUri("external"), FILE_PROJECTION,
select, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String path = cursor.getString(cursor.getColumnIndexOrThrow(FILE_PROJECTION[1]));
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(FILE_PROJECTION[2]));
LogUtils.dTag(TAG, "-fileName->" + fileName);
LogUtils.dTag(TAG, "-path->" + path);
long date = cursor.getLong(cursor.getColumnIndexOrThrow(FILE_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(FILE_PROJECTION[5]));
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
LogUtils.dTag(TAG, "fileName=" + fileName);
GridItem mGridItem = new GridItem(fileName, path, sDate, false, false, String.valueOf(date), size);
GirdList.add(mGridItem);
} while (cursor.moveToNext());
}
cursor.close();
}
return GirdList;
}
/**
* 获取所有的file.
*
* @param context 上下文
* @return list
*/
public static ArrayList getAllFileName(Context context) {
ArrayList<String> list = new ArrayList();
String orderBy = MediaStore.Files.FileColumns.DATE_MODIFIED + " desc ";
String select = "(_data LIKE '%.pdf')"
+ " or (_data LIKE '%.docx')"
+ " or (_data LIKE '%.doc')"
+ " or (_data LIKE '%.xls')"
+ " or (_data LIKE '%.xlsx')"
+ " or (_data LIKE '%.ppt')"
+ " or (_data LIKE '%.pptx')"
+ " or (_data LIKE '%.txt')";
Cursor cursor = context.getContentResolver().query(
MediaStore.Files.getContentUri("external"), FILE_PROJECTION,
select, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String fileName = cursor.getString(cursor.getColumnIndexOrThrow(FILE_PROJECTION[2]));
list.add(fileName);
} while (cursor.moveToNext());
}
cursor.close();
}
return list;
}
/**
* 分页获取Files.
*
* @param context 上下文
* @param pageNum 页码
* @return list
*/
public static ArrayList getFilesByPage(Context context, int pageNum) {
ArrayList<GridItem> GirdList = new ArrayList();
int offset = (pageNum - 1) * PAGE_COUNT;
int max = pageNum * PAGE_COUNT;
LogUtils.dTag(TAG, "offset=" + offset + ";max=" + max);
String orderBy = MediaStore.Files.FileColumns.DATE_MODIFIED + " desc limit " + offset + "," + PAGE_COUNT;
String selection = MediaStore.Files.FileColumns.MIME_TYPE + "= ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? "
+ " or " + MediaStore.Files.FileColumns.MIME_TYPE + " = ? ";
String select = "(_data LIKE '%.pdf')"
+ " or (_data LIKE '%.docx')"
+ " or (_data LIKE '%.doc')"
+ " or (_data LIKE '%.xls')"
+ " or (_data LIKE '%.xlsx')"
+ " or (_data LIKE '%.ppt')"
+ " or (_data LIKE '%.pptx')"
+ " or (_data LIKE '%.txt')";
String[] selectionArgs = {
"text/plain",
"application/msword",
"application/pdf",
"application/vnd.ms-powerpoint",
"application/vnd.ms-excel",
"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
"application/x-excel",
"application/vnd.openxmlformats-officedocument.presentationml.presentation",
"application/x-zip-compressed",
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"};
Cursor cursor = context.getContentResolver().query(
MediaStore.Files.getContentUri("external"), FILE_PROJECTION,
select, null, orderBy);
if (cursor != null) {
if (cursor.getCount() > 0) {
LogUtils.dTag(TAG, "-count->" + cursor.getCount());
cursor.moveToFirst();
do {
String path = cursor.getString(cursor.getColumnIndexOrThrow(FILE_PROJECTION[1]));
LogUtils.dTag(TAG, "-path->" + path);
//String fileName = cursor.getString(cursor.getColumnIndexOrThrow(FILE_PROJECTION[2]));
String fileName = path.substring(path.lastIndexOf("/") + 1);
long date = cursor.getLong(cursor.getColumnIndexOrThrow(FILE_PROJECTION[3]));
long size = cursor.getLong(cursor.getColumnIndexOrThrow(FILE_PROJECTION[5]));
if (size == 0) {
continue;
}
Date dt = new Date(date);
String sDate = formatNyr.format(dt);//将long变stri
String id = cursor.getString(cursor.getColumnIndexOrThrow(FILE_PROJECTION[0]));
GridItem item = new GridItem(id, fileName, path, "", sDate, false,
false, String.valueOf(date), size, false);
GirdList.add(item);
} while (cursor.moveToNext());
}
cursor.close();
}
return GirdList;
}
/**
* 删除文件.
*
* @param context 上下文
* @param gridItem item
* @param mediaType mediaType
*/
public static void deleteFileFromDatabase(Context context, GridItem gridItem, String mediaType) {
ContentResolver mContentResolver = context.getContentResolver();
Uri uri;
String where;
if (mediaType.equals(VIDEO)) {
uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
where = MediaStore.Video.Media.DATA + "='" + gridItem.getPath() + "'";
} else if (mediaType.equals(IMAGE)) {
uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
where = MediaStore.Images.Media.DATA + "='" + gridItem.getPath() + "'";
} else if (mediaType.equals(AUDIO)) {
uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
where = MediaStore.Audio.Media.DATA + "='" + gridItem.getPath() + "'";
} else {
//mMediaType.equals(FILE
uri = MediaStore.Files.getContentUri("external");
where = MediaStore.Files.FileColumns.DATA + "='" + gridItem.getPath() + "'";
}
mContentResolver.delete(uri, where, null);
}
/**
* check File是否存在.
*
* @param context context
* @param mediaType mediaType
* @param fileName fileName
* @return 是否存在该文件
*/
public static boolean checkFile(Context context, String mediaType, String fileName) {
Uri uri;
String where;
if (mediaType.equals(VIDEO)) {
uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
where = MediaStore.Video.Media.DISPLAY_NAME + "='" + fileName + "'";
} else if (mediaType.equals(IMAGE)) {
uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
where = MediaStore.Images.Media.DISPLAY_NAME + "='" + fileName + "'";
} else if (mediaType.equals(AUDIO)) {
uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
where = MediaStore.Audio.Media.DISPLAY_NAME + "='" + fileName + "'";
} else {
//mMediaType.equals(FILE
uri = MediaStore.Files.getContentUri("external");
//DATA 的原因是因为DISPLAY_NAME可能为null,查询不到
where = MediaStore.Files.FileColumns.DATA + "='" + LocalStoragePath.getBaseSavePath() + fileName + "'";
}
Cursor cursor = context.getContentResolver().query(uri, null,
where, null, null);
if (cursor != null) {
if (cursor.getCount() > 0) {
return true;
}
cursor.close();
}
return false;
}
/**
* getArtwork.
*
* @param context context
* @param songId songId
* @param albumId albumId
* @param allowdefault allowdefault
* @return bm
*/
public static Bitmap getArtwork(Context context, long songId, long albumId,
boolean allowdefault) {
if (albumId < 0) {
// This is something that is not in the database, so get the album art directly
// from the file.
if (songId >= 0) {
Bitmap bm = getArtworkFromFile(context, songId, -1);
if (bm != null) {
return bm;
}
}
if (allowdefault) {
return getDefaultArtwork(context);
}
return null;
}
ContentResolver res = context.getContentResolver();
Uri uri = ContentUris.withAppendedId(ARTWORKURI, albumId);
if (uri != null) {
InputStream in = null;
try {
in = res.openInputStream(uri);
return BitmapFactory.decodeStream(in, null, BITMAPOPTIONS);
} catch (FileNotFoundException ex) {
// The album art thumbnail does not actually exist. Maybe the user deleted it, or
// maybe it never existed to begin with.
Bitmap bm = getArtworkFromFile(context, songId, albumId);
if (bm != null) {
if (bm.getConfig() == null) {
bm = bm.copy(Bitmap.Config.RGB_565, false);
if (bm == null && allowdefault) {
return getDefaultArtwork(context);
}
}
} else if (allowdefault) {
bm = getDefaultArtwork(context);
}
return bm;
} finally {
try {
if (in != null) {
in.close();
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
return null;
}
private static Bitmap getArtworkFromFile(Context context, long songid, long albumid) {
Bitmap bm = null;
byte[] art = null;
String path = null;
if (albumid < 0 && songid < 0) {
throw new IllegalArgumentException("Must specify an album or a song id");
}
try {
if (albumid < 0) {
Uri uri = Uri.parse("content://media/external/audio/media/" + songid + "/albumart");
ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r");
if (pfd != null) {
FileDescriptor fd = pfd.getFileDescriptor();
bm = BitmapFactory.decodeFileDescriptor(fd);
}
} else {
Uri uri = ContentUris.withAppendedId(ARTWORKURI, albumid);
ParcelFileDescriptor pfd = context.getContentResolver().openFileDescriptor(uri, "r");
if (pfd != null) {
FileDescriptor fd = pfd.getFileDescriptor();
bm = BitmapFactory.decodeFileDescriptor(fd);
}
}
} catch (FileNotFoundException ex) {
}
if (bm != null) {
mCachedBit = bm;
}
return bm;
}
@SuppressLint("ResourceType")
private static Bitmap getDefaultArtwork(Context context) {
BitmapFactory.Options opts = new BitmapFactory.Options();
opts.inPreferredConfig = Bitmap.Config.RGB_565;
return BitmapFactory.decodeStream(
context.getResources().openRawResource(R.drawable.shape_019ea1_12), null, opts);
}
/**
* getRoundedCornerBitmap.
*
* @param bitmap bitmap
* @param roundPx roundPx
* @return bm
*/
public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {
if (bitmap == null) {
return null;
}
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap
.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(ZERO, ZERO, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(ZERO, ZERO, ZERO, ZERO);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
}
资源实体类
package xxx;
import android.graphics.Bitmap;
import java.io.Serializable;
public class GridItem implements Serializable {
private String id;
private String path;
private String thumb;
private String name;
private String time;
private boolean isVedio;
private int section;
private boolean isChecked;
private String lastModified;
private long size;
private String cover;//音乐专辑图片
private Bitmap bitmap;//音乐专辑图片bitmap
private String categoryName; //聚合照片类名
private String categoryId;
private boolean isCloud;
private String artist;
private String lyric;
/**
* GridItem 实体.
*
* @param name name
* @param path path
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
*/
public GridItem(String name, String path, String time, boolean isVedio,
boolean isChecked, String lastModified, long size) {
super();
this.name = name;
this.path = path;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
}
/**
* GridItem 实体.
*
* @param id id
* @param name name
* @param path path
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
*/
public GridItem(String id, String name, String path, String time, boolean isVedio,
boolean isChecked, String lastModified, long size) {
super();
this.id = id;
this.name = name;
this.path = path;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
}
/**
* GridItem 实体.
*
* @param id id
* @param name name
* @param path path
* @param thumb thumb
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
* @param categoryId categoryId
* @param cloud cloud
*/
public GridItem(String id, String name, String path,String thumb, String time, boolean isVedio,
boolean isChecked, String lastModified, long size, String categoryId, boolean cloud) {
super();
this.id = id;
this.name = name;
this.path = path;
this.thumb = thumb;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
this.categoryId = categoryId;
this.isCloud = cloud;
}
/**
* GridItem 实体.
*
* @param id id
* @param name name
* @param path path
* @param thumb thumb
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
* @param cloud cloud
*/
public GridItem(String id, String name, String path, String thumb, String time, boolean isVedio,
boolean isChecked, String lastModified, long size, boolean cloud) {
super();
this.id = id;
this.name = name;
this.path = path;
this.thumb = thumb;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
this.isCloud = cloud;
}
/**
* GridItem 实体.
*
* @param name name
* @param path path
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
* @param categoryName categoryName
*/
public GridItem(String name, String path, String time, boolean isVedio,
boolean isChecked, String lastModified, long size, String categoryName) {
super();
this.name = name;
this.path = path;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
this.categoryName = categoryName;
}
/**
* GridItem 实体.
*
* @param id id
* @param name name
* @param path path
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
* @param cover cover
* @param artist artist
* @param lyric lyric
* @param cloud cloud
*/
public GridItem(String id, String name, String path, String time, boolean isVedio,
boolean isChecked, String lastModified, long size, String cover,
String artist, String lyric, boolean cloud) {
super();
this.id = id;
this.name = name;
this.path = path;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
this.cover = cover;
this.artist = artist;
this.lyric = lyric;
this.isCloud = cloud;
}
/**
* GridItem 实体.
*
* @param id id
* @param name name
* @param path path
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
* @param bitmap bitmap
* @param artist artist
* @param lyric lyric
* @param cloud cloud
*/
public GridItem(String id, String name, String path, String time, boolean isVedio,
boolean isChecked, String lastModified, long size, Bitmap bitmap,
String artist, String lyric, boolean cloud) {
super();
this.id = id;
this.name = name;
this.path = path;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
this.bitmap = bitmap;
this.artist = artist;
this.lyric = lyric;
this.isCloud = cloud;
}
/**
* GridItem 实体.
*
* @param id id
* @param name name
* @param path path
* @param thumb thumb
* @param time time
* @param isVedio isVedio
* @param isChecked isChecked
* @param lastModified lastModified
* @param size size
* @param cover cover
* @param artist artist
* @param lyric lyric
* @param cloud cloud
*/
public GridItem(String id, String name, String path, String thumb, String time, boolean isVedio,
boolean isChecked, String lastModified, long size, String cover,
String artist, String lyric, boolean cloud) {
super();
this.id = id;
this.name = name;
this.path = path;
this.thumb = thumb;
this.time = time;
this.isVedio = isVedio;
this.lastModified = lastModified;
this.size = size;
this.cover = cover;
this.artist = artist;
this.lyric = lyric;
this.isCloud = cloud;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPath() {
return path;
}
public void setPath(String path) {
this.path = path;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public boolean isVedio() {
return isVedio;
}
public void setVedio(boolean vedio) {
isVedio = vedio;
}
public int getSection() {
return section;
}
public void setSection(int section) {
this.section = section;
}
public boolean isChecked() {
return isChecked;
}
public void setChecked(boolean checked) {
isChecked = checked;
}
public String getLastModified() {
return lastModified;
}
public void setLastModified(String lastModified) {
this.lastModified = lastModified;
}
public long getSize() {
return size;
}
public void setSize(long size) {
this.size = size;
}
public String getCover() {
return cover;
}
public void setCover(String cover) {
this.cover = cover;
}
public String getCategoryName() {
return categoryName;
}
public void setCategoryName(String categoryName) {
this.categoryName = categoryName;
}
public boolean isCloud() {
return isCloud;
}
public void setCloud(boolean cloud) {
isCloud = cloud;
}
public String getCategoryId() {
return categoryId;
}
public void setCategoryId(String categoryId) {
this.categoryId = categoryId;
}
public String getArtist() {
return artist;
}
public void setArtist(String artist) {
this.artist = artist;
}
public String getLyric() {
return lyric;
}
public void setLyric(String lyric) {
this.lyric = lyric;
}
public String getThumb() {
return thumb;
}
public void setThumb(String thumb) {
this.thumb = thumb;
}
public Bitmap getBitmap() {
return bitmap;
}
public void setBitmap(Bitmap bitmap) {
this.bitmap = bitmap;
}
}
媒体数据库更新的方法
方法一：扫描某一个目录
sendBroadcast(new Intent(
Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,
Uri.parse(filePath));
方法二：扫描摸一个文件
String path = LocalStoragePath.getBaseSavePath() + fileName;
new SingleMediaScanner(this.mContext, new File(path));
SingleMediaScanner:
package xxx;
import android.content.Context;
import android.media.MediaScannerConnection;
import android.net.Uri;
import java.io.File;
/**
* 媒体数据库刷新.
*/
public class SingleMediaScanner implements MediaScannerConnection.MediaScannerConnectionClient {
private MediaScannerConnection mMs;
private File mFile;
/**
* SingleMediaScanner.
*
* @param context context
* @param file file
*/
public SingleMediaScanner(Context context, File file) {
mFile = file;
mMs = new MediaScannerConnection(context, this);
mMs.connect();
}
@Override
public void onMediaScannerConnected() {
mMs.scanFile(mFile.getAbsolutePath(), null);
}
@Override
public void onScanCompleted(String path, Uri uri) {
mMs.disconnect();
Log.d("TAG", "Finished scanning " + path);
}
}
